IDE-785

removed the checkConnectionSettings when server is unavailable or
shutdown.
IDE-1022

removed the portal-impl.jar
IDE-1004

Added suspend freemarker thread action that will
suspend the server thread that is executing the
freemarker engine
IDE-1029
IDE-1000

Added toggle action in variables view to switch between
simple and advanced display of freemarker variables
IDE-834

    Override the getInvalidValueSeverity class in PossibleValuesService
IDE-1031
IDE-908

Enabled layout editor to display nested layout.